Read the latest on Developer tools, integration examples, upcoming events, API libraries, tech resources and more.
Adyen Developer Newsletter
April 2025 Edition
Read the latest on developer tools, integration examples, upcoming events, API Libraries, tech resources and more.
Updates
Capital API 

The Adyen Capital API is now available! We are live with multiple endpoints for integrating Adyen Capital into your marketplace or platform, allowing businesses to provide users with business financing in the form of grants.
A Postman Collection is available to explore the features, check it out on our AdyenDev Postman space.

→ Capital API on Docs

Subscribe to alerts for balance platform webhooks

To help you in troubleshooting failing webhooks, you now have the option to subscribe to alerts for balance platform webhooks. Adyen will send alerts:
  • when a webhook is failing
  • after a period of time has passed
  • if it has recovered

→ Balance Platform webhooks on Docs

Adyen For Platforms (AfP) Sample App

The Adyen For Platforms (AfP) Sample App has been upgraded to use the Adyen Java library v35, we've have also upgraded the Platform Integration Experience web components to v1.3.1.

This application is a simplified version of a platform that utilises Adyen for Platforms, showcasing the following use cases:
  • Signup and start Hosted Onboarding
  • Login and resume Hosted Onboarding 
  • View transactions, payouts and reports

→ AfP Sample App on GitHub
Resources
Lessons from 72 Million API Calls per month 

Ever wondered how to build API endpoints that handle millions of requests while maintaining ultra-low latency?
In this talk, Manish Devgan shares real-world insights from his experience optimizing APIs at Adyen and dealing with the large scale of API calls our platform processes daily.

→ Watch the video on YouTube

Data Agent Benchmark for Multi-step Reasoning

Adyen and Hugging Face introduce DABstep, a benchmark with 450+ real-world multi-step data tasks to evaluate AI agents in reasoning, code, and data workflows. Current top models achieve just 16% accuracy—highlighting how far we have to go.

Read our blog to learn about the design of the benchmark, the evaluation results, and the gap between current models and the ability to solve complex data analysis tasks effectively.

→ Read the blog
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Stay in touch

Thank you for reading this edition. If you have any comments or feedback, we would love to read them, so please share your feedback here. Follow us on Twitter (X), and check out our website for more developer updates and resources.

Cheers,

- Beppe
On behalf of the Adyen Developer Relations Team